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><A
NAME="CATALOG-PG-LANGUAGE"
>45.27. <TT
CLASS="STRUCTNAME"
>pg_language</TT
></A
></H1
><P
>   The catalog <TT
CLASS="STRUCTNAME"
>pg_language</TT
> registers
   languages in which you can write functions or stored procedures.
   See <A
HREF="sql-createlanguage.html"
>CREATE LANGUAGE</A
>
   and <A
HREF="xplang.html"
>Chapter 38</A
> for more information about language handlers.
  </P
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><P
><B
>Table 45-27. <TT
CLASS="STRUCTNAME"
>pg_language</TT
> Columns</B
></P
><TABLE
BORDER="1"
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><COL><COL><COL><COL><THEAD
><TR
><TH
>Name</TH
><TH
>Type</TH
><TH
>References</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanname</TT
></TD
><TD
><TT
CLASS="TYPE"
>name</TT
></TD
><TD
>&nbsp;</TD
><TD
>Name of the language</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanowner</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-authid.html"
><TT
CLASS="STRUCTNAME"
>pg_authid</TT
></A
>.oid</TT
></TD
><TD
>Owner of the language</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanispl</TT
></TD
><TD
><TT
CLASS="TYPE"
>bool</TT
></TD
><TD
>&nbsp;</TD
><TD
>       This is false for internal languages (such as
       <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
>) and true for user-defined languages.
       Currently, <SPAN
CLASS="APPLICATION"
>pg_dump</SPAN
> still uses this
       to determine which languages need to be dumped, but this might be
       replaced by a different mechanism in the future.
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanpltrusted</TT
></TD
><TD
><TT
CLASS="TYPE"
>bool</TT
></TD
><TD
>&nbsp;</TD
><TD
>       True if this is a trusted language, which means that it is believed
       not to grant access to anything outside the normal SQL execution
       environment.  Only superusers can create functions in untrusted
       languages.
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanplcallfoid</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>       For noninternal languages this references the language
       handler, which is a special function that is responsible for
       executing all functions that are written in the particular
       language
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>laninline</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>       This references a function that is responsible for executing
       <SPAN
CLASS="QUOTE"
>"inline"</SPAN
> anonymous code blocks
       (<A
HREF="sql-do.html"
>DO</A
> blocks).
       Zero if inline blocks are not supported.
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanvalidator</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>       This references a language validator function that is responsible
       for checking the syntax and validity of new functions when they
       are created.  Zero if no validator is provided.
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>lanacl</TT
></TD
><TD
><TT
CLASS="TYPE"
>aclitem[]</TT
></TD
><TD
>&nbsp;</TD
><TD
>       Access privileges; see
       <A
HREF="sql-grant.html"
>GRANT</A
> and
       <A
HREF="sql-revoke.html"
>REVOKE</A
>
       for details
      </TD
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